Further information re Request to Change Approval MCU 132003.221132.8

    The times for Dodonaea Basin to empty for different ARI events are
                                                                                          present in Table 6 below.




    In summary the Option 3 strategy incorporating new Basins BIA, B1C and the
                                                                              reconfiguration of the
    Twigrush and Dodonaea Basins will still mitigate peak flow increases from the
                                                                             proposed development.
    The reduction in WSL’s in the Dodonaea Basin compared to the previous
                                                                          strategy is significant. The
    time in which the Dodonaea Basin takes to empty has also reduced.


    The peak flow management strategy has been updated to achieve
                                                                                       non-worsening objectives while the
    Dodonaea Basin configuration allows for the installation of a fauna
                                                                                         crossing under Dodonaea Close.
    We     trust     this information is acceptable and
                                                 respectfully request the new stormwater management
    strategy for Lake Doonella, Noosa Stage C Development be approved.

    Should you require any further information, please do not hesitate to contact Andrew McPhail or the
    undersigned on.
    (07)3895 3444.

    Yours sincerely,
    Brown Consulting (QLD)Pty Ltd

.




            ~
                ~)t\(
    Andrew McPhail
    P17ncipa/Engineer- Water and Environmellt

    ATIACHMENTS
    1.   Email from SCRC Senior Development Planner Dennis Wallace
    2.   Drawing,;




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